gistfile1.cpp

/*
 * Based off of http://sambro.is-super-awesome.com/2011/03/03/creating-a-proper-buffer-in-a-node-c-addon/
 */
static Local<Object> makeBuffer(char* data, size_t size) {
  HandleScope scope;

  // It ends up being kind of a pain to convert a slow buffer into a fast
  // one since the fast part is implemented in JavaScript.
  Local<Buffer> slowBuffer = Buffer::New(data, size);
  // First get the Buffer from global scope...
  Local<Object> global = Context::GetCurrent()->Global();
  Local<Value> bv = global->Get(String::NewSymbol("Buffer"));
  assert(bv->IsFunction());
  Local<Function> b = Local<Function>::Cast(bv);
  // ...call Buffer() with the slow buffer and get a fast buffer back...
  Handle<Value> argv[3] = { slowBuffer->handle_, Integer::New(size), Integer::New(0) };
  Local<Object> fastBuffer = b->NewInstance(3, argv);

  return scope.Close(fastBuffer);
}